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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 // All things regarding compile time constant expressions. | |
| 5 | |
| 6 interface Roman { | |
| 7 static final I = 1; | |
| 8 static final II = 2; | |
| 9 static final III = 3; | |
| 10 static final IV = 4; | |
| 11 static final V = 5; | |
| 12 | |
| 13 static final VivaItalia = const {"green": 1, "red": 3, "white": 2}; | |
| 14 } | |
| 15 | |
| 16 | |
| 17 class Point { | |
| 18 static final int zero = 0; | |
| 19 | |
| 20 static final origin = const Point(0, 0); | |
| 21 static final origin2 = const Point(zero, Roman.IV - 4); | |
| 22 | |
| 23 const Point(x, y) : x_= x, y_ = y; | |
| 24 const Point.X(x) : x_ = x, y_ = Roman.V - Roman.II - 3; | |
| 25 | |
| 26 bool operator ==(final Point other) { | |
| 27 return (this.x_ == other.x_) && (this.y_ == other.y_); | |
| 28 } | |
| 29 | |
| 30 final int x_, y_; | |
| 31 } | |
| 32 | |
| 33 | |
| 34 class Line { | |
| 35 const Line(Point begin, Point end) : beg_ = begin, end_ = end; | |
| 36 final Point beg_; | |
| 37 final Point end_; | |
| 38 } | |
| 39 | |
| 40 | |
| 41 class CTConstTest { | |
| 42 static int getZero() { return 0; } | |
| 43 static final naught = null; | |
| 44 | |
| 45 static testMain() { | |
| 46 Expect.equals(0, Point.zero); | |
| 47 Expect.equals(0, Point.origin.x_); | |
| 48 Expect.equals(true, Point.origin === Point.origin2); | |
| 49 var p1 = const Point(0, 0); | |
| 50 Expect.equals(true, Point.origin === p1); | |
| 51 | |
| 52 Expect.equals(false, Point.origin == const Point(1, 1)); | |
| 53 Expect.equals(false, Point.origin === const Point(1, 1)); | |
| 54 | |
| 55 var p2 = new Point(0, getZero()); | |
| 56 Expect.equals(true, Point.origin == p2); // Point.operator== | |
| 57 | |
| 58 Expect.equals(true, const Point.X(5) === const Point(5, 0)); | |
| 59 | |
| 60 Line l1 = const Line(Point.origin, const Point(1, 1)); | |
| 61 Line l2 = const Line(const Point(0, 0), const Point(1, 1)); | |
| 62 Line l3 = new Line(const Point(0, 0), const Point(1, 1)); | |
| 63 Expect.equals(true, l1 === l2); | |
| 64 | |
| 65 final evenNumbers = const <int>[2, 2*2, 2*3, 2*4, 2*5]; | |
| 66 Expect.equals(true, evenNumbers !== const [2, 4, 6, 8, 10]); | |
| 67 | |
| 68 final c11dGermany1 = const {"black": 1, "red": 2, "yellow": 3}; | |
| 69 Expect.equals(true, | |
| 70 c11dGermany1 === const {"black": 1, "red": 2, "yellow": 3}); | |
| 71 | |
| 72 final c11dGermany2 = const {"black": 1, "red": 2, "yellow": 3}; | |
| 73 Expect.equals(true, c11dGermany1 === c11dGermany2); | |
| 74 | |
| 75 final c11dBelgium = const {"black": 1, "yellow": 2, "red": 3}; | |
| 76 Expect.equals(false, c11dGermany1 == c11dBelgium); | |
| 77 Expect.equals(false, c11dGermany1 === c11dBelgium); | |
| 78 | |
| 79 final c11dItaly = const {"green": 1, "red": 3, "white": 2}; | |
| 80 Expect.equals(true, | |
| 81 c11dItaly === const {"green": 1, "red": 3, "white": 2}); | |
| 82 Expect.equals(true, c11dItaly === Roman.VivaItalia); | |
| 83 | |
| 84 Expect.equals(3, c11dItaly.length); | |
| 85 Expect.equals(3, c11dItaly.getKeys().length); | |
| 86 Expect.equals(true, c11dItaly.containsKey("white")); | |
| 87 Expect.equals(false, c11dItaly.containsKey("black")); | |
| 88 | |
| 89 // Make sure the map object is immutable. | |
| 90 bool caughtException = false; | |
| 91 try { | |
| 92 c11dItaly["green"] = 0; | |
| 93 } catch (IllegalAccessException e) { | |
| 94 caughtException = true; | |
| 95 } | |
| 96 Expect.equals(true, caughtException); | |
| 97 Expect.equals(1, c11dItaly["green"]); | |
| 98 | |
| 99 caughtException = false; | |
| 100 try { | |
| 101 c11dItaly.clear(); | |
| 102 } catch (IllegalAccessException e) { | |
| 103 caughtException = true; | |
| 104 } | |
| 105 Expect.equals(true, caughtException); | |
| 106 Expect.equals(1, c11dItaly["green"]); | |
| 107 | |
| 108 caughtException = false; | |
| 109 try { | |
| 110 c11dItaly.remove("orange"); | |
| 111 } catch (IllegalAccessException e) { | |
| 112 caughtException = true; | |
| 113 } | |
| 114 Expect.equals(true, caughtException); | |
| 115 Expect.equals(1, c11dItaly["green"]); | |
| 116 | |
| 117 Expect.equals(true, null === naught); | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 main() { | |
| 122 CTConstTest.testMain(); | |
| 123 } | |
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